#203A41
Closest named color: Dark Blue Grey (#1F3B4D). oklch(33.1% 0.034 216.9), rgb(32, 58, 65).
Aa
White text reads best on this color (12.04:1).
About this color
#203A41 is a dark, muted teal or cyan. In OKLCH its lightness is 33%, its chroma 0.034 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.021 away. White text reads best on it, at 12.04:1.
| Hue family | Teals and cyans |
| Lightness | dark (33%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.74:1 |
| White text | 12.04:1 |
Values
| HEX | #203A41 |
| RGB | rgb(32, 58, 65) |
| HSL | hsl(193, 34%, 19%) |
| OKLCH | oklch(33.1% 0.034 216.9) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #203A41 | 12.04:1 | AAA | Lc -101.0 | Preferred for body text |
| Black text on #203A41 | 1.74:1 | Fails | Lc 0.0 | Not readable |
| #203A41 text on white | 12.04:1 | AAA | Lc 97.5 | Preferred for body text |
| #203A41 text on black | 1.74:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#CFDCDF
oklch(88.6% 0.015 213.1)
-
Step 300
300
#AFC5CB
oklch(80.9% 0.025 215.9)
-
Step 400
400
#84A7B1
oklch(70.6% 0.041 217.1)
-
Step 500
500
#65929E
oklch(63.2% 0.052 216.2)
-
Step 600
600
#4B7C89
oklch(55.7% 0.057 216.6)
-
Step 700
700
#3B6874
oklch(49% 0.053 216.9)
-
Step 800
800
#32555F
oklch(42.7% 0.044 218)
-
Step 900
900 (this color)
#203A41
oklch(33.1% 0.034 216.9)
-
Step 950
950
#1A292D
oklch(26.9% 0.022 216.2)
#203A41 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #353841 | 0.030 |
| Deuteranopia (no green cones) | #303541 | 0.026 |
| Tritanopia (no blue cones) | #113D3C | 0.021 |
| Achromatopsia (no color) | #363636 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #203A41
#203A41
oklch(33.1% 0.034 216.9)
- #452F29
#452F29
oklch(32.9% 0.034 35.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #203A41, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.021
- Midnight Green #073B4C ΔE 0.026
- Onyx #343A40 ΔE 0.028
- Gunmetal #293241 ΔE 0.029
- Space Cadet #2B2D42 ΔE 0.046
- Charcoal #264653 ΔE 0.046
- Prussian Blue #1D3557 ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.049
Use #203A41 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.